It’s unclear why these white Republicans continue to try Rep. Maxine Waters, but always be clear: She isn’t the one.

This is a hard lesson that Treasury Secretary Steven Mnuchin learned on Tuesday when he showed out during his testimony in front of the House Financial Services Committee, which Waters leads.

See, the President Trump appointed advisor was upset that his testimony was taking too long—over three hours—and that he had a meeting to attend. Mnuchin tried to get testy, telling Waters that it was 5:08pm and he was told he could leave at 5pm.

Apparently, he had a face-to-face with a senior official from the government of Bahrain to discuss efforts to combat counterterrorism financing, CNN noted. Yet, he told Waters he was willing to stay till 5:15.

“It will be embarrassing if I keep this person waiting for a long period of time,” Mnuchin said.

Waters quickly responded: “Unfortunately, we are all pressed for time. I have the gavel at this point,” Waters said. “If you wish to leave, you may.”

It was all downhill for him.

Mnuchin thought he could outsmart Waters, by getting testy, trying to play a mind game and then having the audacity to tell the senior top Democrat how to do her job and when to bang her gavel. But in true Black auntie form, Waters snatched him up, real quick.

“Please do not instruct me as to how I am to conduct this committee,” she warned.

Later, Waters explained the testy exchange with CNN’s Anderson Cooper, saying that Mnuchin’s meeting was secondary to his testimony in front of her committee.

“When he said that he had somebody important (to meet), I don’t think that there’s anything or anybody more important than the Congress of the United States of America trying to find out what exactly this secretary is doing,” she said.

“He wanted me to order him or to shut down the committee… to use the gavel to say the committee was adjourned for his purposes.”

Financial Services Comm. Chair Rep. Maxine Waters explains her side of a verbal clash she had with Treasury Sec. Mnuchin over a scheduling issue. pic.twitter.com/R6OIVGgQNv

Listen…folks flocked to Twitter to applaud Waters, accuse Mnuchin of having little respect for Black women and to remind other Democrats that Auntie Maxine is the epitome of courage and the face of the resistance.

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This exchange between Rep. Maxine Waters and Treasury Secretary Steve Mnuchin is exactly why this country doesn’t deserve the Black women so many vehemently proclaim should save it. pic.twitter.com/M0hyJWKl48

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To be clear, if Auntie Maxine Waters were an old rich white GOP sycophant, the ever corrupt, trashy and creepy Steve Mnuchin would’ve never been this blatantly rude and disrespectful. Thank goodness Maxine Waters wasn’t having any of that shit.pic.twitter.com/bb0CpxDgDs